package com.edu.whty.common.tools;

import java.util.*;

public final class CollectionUtils {
	
	public static <E> List<E> newArrayList() {
		return new ArrayList<E>();
	}
	
	public static <E> List<E> newLinkedList() {
		return new LinkedList<E>();
	}
	
	public static <E> Set<E> newTreeSet() {
		return new TreeSet<E>();
	}
	
	public static <E> Set<E> newHashSet() {
		return new HashSet<E>();
	}

}
